Latest Facebook Messenger Lite 295 user agents:

User Agent Platform Device
Mozilla/5.0 (iPad; CPU OS 9_3_5 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Mobile/13G36 LightSpeed [FBAN/MessengerLiteForiOS;FBAV/295.0.0.51.474;FBBV/267272585;FBDV/iPad3,1;FBMD/iPad;FBSN/iPhone OS;FBSV/9.3.5;FBSS/2;FBCR/;FBID/tablet;FBLC/vi;FBOP/0] iOS 9 iPad 3